RoxyBond

Boxed Warning 12/2025 Indications and Usage ( 1 ) 12/2025 Dosage and Administration ( 2.2 , 2.5 ) 12/2025 Warnings and Precautions ( 5.1 , 5.2 , 5.3 , 5.12 , 5.14 ) 12/2025

1 INDICATIONS AND USAGE ROXYBOND is indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. ROXYBOND is an opioid agonist indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. ( 1 ) Limitations of Use Because of the risks of addiction, abuse, misuse, overdose, and death, which can occur at any dosage or duration and persist over the course of therapy, reserve opioid analgesics, including ROXYBOND, for use in patients for whom alternative treatment options are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain. ( 1 , 5.1 ) Limitations of Use Because of the risks of addiction, abuse, misuse, overdose, and death, which can occur any dosage or duration and persist over the course of therapy, [see Warnings and Precautions ( 5.1 )] , reserve opioid analgesics, including ROXYBOND, for use in patients for whom alternative treatment options are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain.

2 DOSAGE AND ADMINISTRATION ROXYBOND should be prescribed only by healthcare professionals who are knowledgeable about the use of opioids and how to mitigate the associated risks. ( 2.1 ) Use the lowest effective dosage for the shortest duration of time consistent with individual patient treatment goals. Reserve titration to higher doses of ROXYBOND for patients in whom lower doses are insufficiently effective and in whom the expected benefits of using a higher dose opioid clearly outweigh the substantial risks. ( 2.1 , 5 ) Many acute pain conditions (e.g., the pain that occurs with a number of surgical procedures or acute musculoskeletal injuries) require no more than a few days of an opioid analgesic. Clinical guidelines on opioid prescribing for some acute pain conditions are available. ( 2.1 ) Initiate the dosing regimen for each patient individually, taking into account the patient's underlying cause and severity of pain, prior analgesic treatment and response, and risk factors for addiction, abuse, and misuse. ( 2.1 , 5.1 ) Respiratory depression can occur at any time during opioid therapy, especially when initiating and following dosage increases with ROXYBOND. Consider this risk when selecting an initial dose and when making dose adjustments. ( 2.1 , 5.2 ) Discuss opioid overdose reversal agents and options for acquiring them with the patient and/or caregiver, both when initiating and renewing treatment with ROXYBOND, especially if the patient has additional risk factors for overdose, or close contacts at risk for exposure and overdose. ( 2.2 , 5.1 , 5.2 , 5.3 ) Initiate dosing with a range of 5 to 15 mg every 4 to 6 hours as needed for pain, and at the lowest dose necessary to achieve adequate analgesia. Titrate the dose based upon the individual patient's response to their initial dose of ROXYBOND. ( 2.3 , 2.4 ) Periodically reassess patients receiving ROXYBOND to evaluate the continued need for opioid analgesics to maintain pain control, for the signs or symptoms of adverse reactions, and for the development of addiction, abuse, or misuse. ( 2.4 , 5.1 , 5.14 , 6 ) Do not rapidly reduce or abruptly discontinue ROXYBOND in a physically dependent patient because rapid reduction or abrupt discontinuation of opioid analgesics has resulted in serious withdrawal symptoms, uncontrolled pain, and suicide. ( 2.4 , 5.14 , 9.3 ) 2.1 Important Dosage and Administration Instructions ROXYBOND should be prescribed only by healthcare professionals who are knowledgeable about the use of opioids and how to mitigate the associated risks. Use the lowest effective dosage for the shortest duration of time consistent with individual patient treatment goals. Because the risk of overdose increases as opioid doses increase, reserve titration to higher doses of ROXYBOND for patients in whom lower doses are insufficiently effective and in whom the expected benefits of using a higher dose opioid clearly outweigh the substantial risks [see Warnings and Precautions ( 5 )] . Many acute pain conditions (e.g., the pain that occurs with a number of surgical procedures or acute musculoskeletal injuries) require no more than a few days of an opioid analgesic. Clinical guidelines on opioid prescribing for some acute pain conditions are available. There is variability in the opioid analgesic dose and duration needed to adequately manage pain due both to the cause of pain and to individual patient factors. Initiate the dosing regimen for each patient individually, taking into account the patient's underlying cause and severity of pain, prior analgesic treatment and response, and risk factors for addiction, abuse, and misuse [see Warnings and Precautions ( 5.1 )] . Respiratory depression can occur at any time during opioid therapy, especially when initiating and following dosage increases with ROXYBOND. Consider this risk when selecting an initial dose and when making dose adjustments [see Warnings and Precautions ( 5.2 )] . 2.2 Patient Access to an Opioid …

3 DOSAGE FORMS AND STRENGTHS ROXYBOND (oxycodone hydrochloride) tablets, 5 mg, 10 mg, 15 mg, and 30 mg with the following characteristics: Strength Tablet Shape Tablet Color Ink-Print on Tablet Side 1 Ink-Print on Tablet Side 2 5 mg Round coated tablets White IDT/O 5 None 10 mg Pink IDT/O 10 None 15 mg Green IDT/O 15 None 30 mg Blue IDT/O 30 None Tablets: 5 mg, 10 mg, 15 mg, 30 mg ( 3 )

4 CONTRAINDICATIONS ROXYBOND is contraindicated in patients with: Significant respiratory depression [see Warnings and Precautions ( 5.2 )] Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment or hypercarbia [see Warnings and Precautions ( 5.8 )] Known or suspected gastrointestinal obstruction, including paralytic ileus [see Warnings and Precautions ( 5.12 )] Known hypersensitivity (e.g., anaphylaxis) to oxycodone [see Adverse Reactions ( 6.2 )] Significant respiratory depression ( 4 ) Acute or severe bronchial asthma in an unmonitored setting or in absence of resuscitative equipment ( 4 ) Known or suspected gastrointestinal obstruction, including paralytic ileus ( 4 ) Hypersensitivity to oxycodone ( 4 )

6 ADVERSE REACTIONS The following serious adverse reactions are described or are described in greater detail, in other sections: Addiction, Abuse, and Misuse [see Warnings and Precautions ( 5.1 )] Life-Threatening Respiratory Depression [see Warnings and Precautions ( 5.2 )] Interactions with Benzodiazepines or Other CNS Depressants [see Warnings and Precautions ( 5.3 )] Neonatal Opioid Withdrawal Syndrome [see Warnings and Precautions ( 5.4 )] Opioid-Induced Hyperalgesia and Allodynia [see Warnings and Precautions ( 5.7 )] Adrenal Insufficiency [see Warnings and Precautions ( 5.9 )] Severe Hypotension [see Warnings and Precautions ( 5.10 )] Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.12 )] Seizures [see Warnings and Precautions ( 5.13 )] Withdrawal [see Warnings and Precautions ( 5.14 )] Most common adverse reactions (≥3%): nausea, constipation, vomiting, headache, pruritus, insomnia, dizziness, asthenia, and somnolence. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Protega Pharmaceuticals Inc. at 1-844-798-3610 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Oxycodone hydrochloride tablets have been evaluated in open label clinical trials in patients with cancer and nonmalignant pain. Oxycodone hydrochloride tablets are associated with adverse experiences similar to those seen with other opioids. Serious adverse reactions that may be associated with ROXYBOND therapy include: respiratory depression, respiratory arrest, circulatory depression, cardiac arrest, hypotension, and/or shock. The common adverse reactions seen on initiation of therapy with oxycodone hydrochloride tablets are dose related and are opioid-related adverse reactions. The most frequent of these included nausea, constipation, vomiting, headache, pruritus, insomnia, dizziness, asthenia, and somnolence. The frequency of these reactions depended on several factors, including clinical setting, the patient's level of opioid tolerance, and host factors specific to the individual. In all patients for whom dosing information was available (n=191) from the open-label and double-blind studies involving oxycodone hydrochloride tablets, the following adverse events were recorded in oxycodone hydrochloride treated patients with an incidence ≥ 3%. In descending order of frequency, they were: nausea, constipation, vomiting, headache, pruritus, insomnia, dizziness, asthenia, and somnolence. Other less frequently observed adverse reactions from opioid analgesics, including oxycodone hydrochloride tablets included: Blood and lymphatic system disorders : anemia, leukopenia Cardiac disorders : cardiac failure, palpitation, tachycardia Gastrointestinal disorders : abdominal pain, dry mouth, diarrhea, dyspepsia, dysphagia, glossitis, nausea, vomiting General disorders and administration site conditions : chills, edema, edema peripheral, pain, pyrexia Immune system disorders : hypersensitivity Infections and infestations : bronchitis, gingivitis, infection, pharyngitis, rhinitis, sepsis, sinusitis, urinary tract infection Injury, poisoning, and procedural complications : injury Metabolism and nutritional disorders : decreased appetite, gout, hyperglycemia Musculoskeletal and connective tissue disorders : arthralgia, arthritis, back pain, bone pain, myalgia, neck pain, pathological fracture Nervous system disorders : hypertonia, hypoesthesia, migraine, neuralgia, tremor, vasodilation Psychiatric disorders : agitation, anxiety, confusional state, nervousness, personality disorder Respiratory, thoracic, and mediastinal disorders : cough, dyspnea, epistaxis, laryngospasm, lung disorder Skin and subcutaneous tissue disorders : photosensitivity reaction, rash, h …

7 DRUG INTERACTIONS Table 1 includes clinically significant drug interactions with ROXYBOND. Table 1. Clinically Significant Drug Interactions with ROXYBOND Inhibitors of CYP3A4 and CYP2D6 Clinical Impact: The concomitant use of ROXYBOND and CYP3A4 inhibitors can increase the plasma concentration of oxycodone, resulting in increased or prolonged opioid effects. These effects could be more pronounced with concomitant use of ROXYBOND and CYP2D6 and CYP3A4 inhibitors, particularly when an inhibitor is added after a stable dose of ROXYBOND is achieved [see Warnings and Precautions ( 5.6 )] . After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the oxycodone plasma concentration will decrease [see Clinical Pharmacology ( 12.3 )] , resulting in decreased opioid efficacy or a withdrawal syndrome in patients who had developed physical dependence to oxycodone. Intervention: If concomitant use is necessary, consider dosage reduction of ROXYBOND until stable drug effects are achieved. Evaluate patients at frequent intervals for respiratory depression and sedation. If a CYP3A4 inhibitor is discontinued, consider increasing the ROXYBOND dosage until stable drug effects are achieved. Evaluate for signs of opioid withdrawal. Examples: Macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g., ketoconazole), protease inhibitors (e.g., ritonavir). CYP3A4 Inducers Clinical Impact: The concomitant use of ROXYBOND and CYP3A4 inducers can decrease the plasma concentration of oxycodone [see Clinical Pharmacology ( 12.3 )] , resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to oxycodone [see Warnings and Precautions ( 5.6 , 5.14 )] . After stopping a CYP3A4 inducer, as the effects of the inducer decline, the oxycodone plasma concentration will increase [see Clinical Pharmacology ( 12.3 )] , which could increase or prolong both the therapeutic effects and adverse reactions, and may cause serious respiratory depression. Intervention If concomitant use is necessary, consider increasing the ROXYBOND dosage until stable drug effects are achieved. Evaluate patients for signs of opioid withdrawal. If a CYP3A4 inducer is discontinued, consider ROXYBOND dosage reduction and evaluate patients at frequent intervals for signs of respiratory depression and sedation. Examples: Rifampin, carbamazepine, phenytoin Benzodiazepines and Other Central Nervous System (CNS) Depressants Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants, including alcohol, can increase the risk of hypotension, respiratory depression, profound sedation, coma, and death [see Warnings and Precautions ( 5.3 )] . Intervention: Reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Inform patients and caregivers of this potential interaction and educate them on the signs and symptoms of respiratory depression (including sedation). If concomitant use is warranted, consider recommending or prescribing an opioid overdose reversal agent [see Dosage and Administration ( 2.2 ), Warnings and Precautions ( 5.1 , 5.2 , 5.3 )] . Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, gabapentinoids (gabapentin or pregabalin), other opioids, alcohol. Serotonergic Drugs Clinical Impact: The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system has resulted in serotonin syndrome [see Adverse Reactions ( 6.2 )] . Intervention: If concomitant use is warranted, frequently reevaluate the patient, particularly during treatment initiation and dose adjustment. Discontinue ROXYBOND if serotonin syndrome is suspected. Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine …

8 USE IN SPECIFIC POPULATIONS Pregnancy: May cause fetal harm. ( 8.1 ) 8.1 Pregnancy Risk Summary Use of opioid analgesics for an extended period of time during pregnancy may cause neonatal opioid withdrawal syndrome [see Warnings and Precautions ( 5.4 ), Clinical Considerations )] . There are reports of respiratory depression when oxycodone is used during labor and delivery [see Clinical Considerations ] . There are no available data with ROXYBOND in pregnant women to inform a drug-associated risk for adverse developmental outcomes. Animal reproduction studies with oral administrations of oxycodone hydrochloride in rats and rabbits during the period of organogenesis, at doses 2.6 and 8.1 times, respectively, the human dose of 60 mg/day did not reveal evidence of teratogenicity or embryo-fetal toxicity. In several published studies, treatment of pregnant rats with oxycodone at clinically relevant doses and below, resulted in neurobehavioral effects in offspring [see Data )] . Based on animal data, advise pregnant women of the potential risk to a fetus. The risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defects, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Use of opioid analgesics for an extended period of time during pregnancy for medical or nonmedical purposes can result in physical dependence in the neonate and neonatal opioid withdrawal syndrome shortly after birth. Neonatal opioid withdrawal syndrome presents as irritability, hyperactivity, and abnormal sleep pattern, high pitched cry, tremor, vomiting, diarrhea, and failure to gain weight. The onset, duration, and severity of neonatal opioid withdrawal syndrome vary based on the specific opioid used, duration of use, timing and amount of last maternal use, and rate of elimination of the drug by the newborn. Observe newborns for symptoms of neonatal opioid withdrawal syndrome and manage accordingly [see Warnings and Precautions ( 5.4 )] . Labor or Delivery Opioids cross the placenta and may produce respiratory depression and psycho-physiologic effects in neonates. An opioid overdose reversal agent, such as naloxone or nalmefene, must be available for reversal of opioid-induced respiratory depression in the neonate. ROXYBOND is not recommended for use in pregnant women during or immediately prior to labor, when other analgesic techniques are more appropriate. Opioid analgesics, including ROXYBOND, can prolong labor through actions which temporarily reduce the strength, duration, and frequency of uterine contractions. However, this effect is not consistent and may be offset by an increased rate of cervical dilation, which tends to shorten labor. Monitor neonates exposed to opioid analgesics during labor for signs of excess sedation and respiratory depression. Data Human Data Limited published data from case-control and observational studies on oxycodone use during pregnancy are inconsistent in their findings. Although some studies reported an increased risk of congenital malformations, there was no consistent pattern of malformations noted. In addition, multiple similar studies reported no association. Methodological limitations of these studies, including small sample size, recall bias, lack of information regarding dose and timing of exposure and concomitant use of other medications, preclude a reliable evaluation of the potential risk of adverse fetal outcomes with the use of oxycodone in pregnancy. Animal Data In embryo-fetal development studies in rats and rabbits, pregnant animals received oral doses of oxycodone hydrochloride administered during the period of organogenesis up to 16 mg/kg/day and up to 25 mg/kg/day, respectively. These studies revealed no evidence …

12.1 Mechanism of Action Oxycodone is a full opioid agonist and is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses. The principal therapeutic action of oxycodone is analgesia. Like all full opioid agonists, there is no ceiling effect for analgesia with oxycodone. Clinically, dosage is titrated to provide adequate analgesia and may be limited by adverse reactions, including respiratory and CNS depression. The precise mechanism of the analgesic action is unknown. However, specific CNS opioid receptors for endogenous compounds with opioid-like activity have been identified throughout the brain and spinal cord and are thought to play a role in the analgesic effects of this drug.

11 DESCRIPTION ROXYBOND (oxycodone hydrochloride) tablets for oral administration are available in 5 mg, 10 mg, 15 mg, and 30 mg strengths, each containing an equivalent of 4.5 mg, 9.0 mg, 13.5 mg, and 27 mg of oxycodone free base, respectively. Oxycodone hydrochloride is an opioid agonist. It is a white, odorless crystalline powder derived from the opium alkaloid, thebaine. Oxycodone hydrochloride dissolves in water (1 g in 6 to 7 mL) and is considered slightly soluble in alcohol (octanol water partition coefficient is 0.7). Chemically, oxycodone hydrochloride is 4, 5α-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one hydrochloride and has the following structural formula: Each ROXYBOND tablet contains the following inactive ingredients common to all strengths: alginic acid, ammonium hydroxide, colloidal silicon dioxide, dibutyl sebacate, dimethylaminoethyl methacrylate copolymer, ethyl acrylate and methyl methacrylate copolymer dispersion, ethylcellulose, hypromellose, iron oxide black, isopropyl alcohol, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, n-butyl alcohol, polyethylene glycol, polysorbate 80, polyvinyl alcohol, propylene glycol, shellac in ethanol, sodium alginate, talc, titanium dioxide, and xanthan gum. The 10 mg ROXYBOND tablets also contain: FD&C Red No. 40, D&C Red No. 30, and D&C Yellow No. 10. The 15 mg ROXYBOND tablets also contain: FD&C Blue No. 2 and iron oxide yellow. The 30 mg ROXYBOND tablets also contain: FD&C Blue No. 2. Structural Formula

10 OVERDOSAGE Clinical Presentation Acute overdose with oxycodone can be manifested by respiratory depression, somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, constricted pupils, and, in some cases, pulmonary edema, bradycardia, hypotension, hypoglycemia, partial or complete airway obstruction, atypical snoring, and death. Marked mydriasis rather than miosis may be seen with hypoxia in overdose situations [see Clinical Pharmacology ( 12.2 )] . Toxic leukoencephalopathy has been reported after opioid overdose and can present hours, days, or weeks after apparent recovery from the initial intoxication. Treatment of Overdose In case of overdose, priorities are the re-establishment of a patent and protected airway and institution of assisted or controlled ventilation, if needed. Employ other supportive measures (including oxygen and vasopressors) in the management of circulatory shock and pulmonary edema as indicated. Cardiac arrest or arrhythmias will require advance life-support measures. For clinically significant respiratory or circulatory depression secondary to oxycodone overdose, administer an opioid overdose reversal agent such as naloxone or nalmefene. Because the duration of opioid reversal is expected to be less than the duration of action of oxycodone in ROXYBOND, carefully monitor the patient until spontaneous respiration is reliably reestablished. If the response to an opioid overdose reversal agent is suboptimal or only brief in nature, administer additional reversal agent as directed by the product's prescribing information. In an individual physically dependent on opioids, administration of the recommended usual dosage of the opioid overdose reversal agent will precipitate an acute withdrawal syndrome. The severity of the withdrawal symptoms experienced will depend on the degree of physical dependence and the dose of the reversal agent administered. If a decision is made to treat serious respiratory depression in the physically dependent patient, administration of the reversal agent should be initiated with care and by titration with smaller than usual doses of the reversal agent.

16 HOW SUPPLIED/STORAGE AND HANDLING ROXYBOND (oxycodone hydrochloride) tablets are supplied as 5 mg, 10 mg, 15 mg, and 30 mg strength round and color coated tablets with ink-prints on one side. The tablets are packaged in 100 tablet opaque HDPE bottles. NDC Strength Tablet Shape Tablet Color Ink-Print on Tablet Side 1 Ink-Print on Tablet Side 2 81140-101-10 5 mg Round coated tablets White IDT/O 5 None 81140-104-10 10 mg Pink IDT/O 10 None 81140-102-10 15 mg Green IDT/O 15 None 81140-103-10 30 mg Blue IDT/O 30 None Dispense in a tight, light-resistant container, with a child-resistant closure. Protect from moisture. Store at controlled room temperature, 20°C to 25°C (68°F to 77°F), with excursions to 15°C to 30°C (59°F to 86°F). Store ROXYBOND securely and dispose of properly.